Yersinia pestis, the organism that causes the bubonic plague, led to the deaths of approximately 75 million people is the 1300's. This was known as the Black Death. Which type of organism caused the bubonic plague?

Answers

Answer 1

Answer:

Yersinia pests

Explanation:

it is  a bacterium. its vectors is infected flea from an animal.  The plague  can also results from contact with contaminated fluid from dead infected animal   from bubonic plague.

when the flea bites, the bacterium enters the blood stream and through the lymphatic systems it finds it way into the lymph nodes of the armpit and pubic region.

it localized in the nodes leading to swelling, enlarged nodes-buboe, with  painful sensation.

chills, high fever, seizures, are some of the symptoms.

proper hygiene is the best preventive methods.


Related Questions

carbohydrates are used for what

Answers

Carbohydrates are used for short term energy. It also stores energy.

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Function of carbohydrates

Carbohydrates provide fuel for the central nervous system and energy for working muscles. They also prevent protein from being used as an energy source and enable fat metabolism, according to Iowa State University. Also, "carbohydrates are important for brain function," Smathers said.

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The process of water absorption through the root

The process of water absorption through the root

Answers

1. Active absorption and passive absorption are the two mechanisms through which roots absorb water.

2. Two aspects of the xylem's structural suitability for this function are:

Tracheary Elements and Uninterrupted Water Pathway.

What is the function of the xylem in plants?

The xylem tissue is specialized for the transport of water and dissolved minerals from the roots to the rest of the plant.

Two aspects of its structural suitability for this function are:

Tracheary Elements: The xylem is composed of tracheary elements, which include tracheids and vessel elements and thickening of the cell walls provides strength and support, enabling the xylem to withstand the pressure generated during water transport.

Uninterrupted Water Pathway: The xylem vessels have no end walls or cell contents, creating a continuous pathway for water movement which allows for efficient and uninterrupted water flow, reducing resistance and facilitating the bulk movement of water through the plant.

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Description of damages caused by flood to lands, to infrastructures, damages to human lives, damages to crops, damages to other animals paragraph

Answers

Large debris and floodwaters can cause structural damage to bridges and roadways, making travel impossible. Power, telephone, and cable lines can be taken out by flash floods as well. Flood waters can disrupt or contaminate ground water, making tap water unfit for consumption.

What are the consequences of flooding?

The cases of flooding in the basin generate numerous negative impacts on the population's quality of life, the consequences of these events are:

the difficulty in urban mobilityloss of real estate value of homeswhich may be affected in these eventsmaterial loss problems

With this information, we can conclude that Floods have large social consequences for communities and individuals. As most people are well aware, the immediate impacts of flooding include loss of human life, damage to property, destruction of crops, loss of livestock, and deterioration of health conditions owing to waterborne diseases.

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Long hair in guinea pigs is a recessive trait. A female guinea pig with long hair mates and
have all heterozygous offspring, what are the genotypes of the male?

Answers

Answer:

The male's genotype is homzygous short (LL)

Explanation:

This question involves a single gene coding for hair length in guinea pigs. The allele for short hair (L) is dominant over the allele for long hair (l). This means that a heterozygote will have short hair (Ll) while a guinea pig with long hair will have genotype ll.

According to this question, a female guinea pig with long hair (ll) mates and have all heterozygous offspring (Ll). This means that the male guinea pig provided only the allele for short hair (L) that made the offsprings all short. In other words, the male's genotype is LL i.e. homzygous short.

Long hair in guinea pigs is a recessive trait. A female guinea pig with long hair mates andhave all heterozygous

Where is Earth's older, denser, and thicker crust located on the seafloor?

A. the furthest away from the center of mid-ocean ridges
B. near the center of mid-ocean ridges
C. near continents
D. the bottom of ocean trenches

Answers

The Earth's older, denser, and thicker crust located on the seafloor is the  the furthest away from the center of mid-ocean ridges and is denoted as option A.

What is Earth crust?

This is referred to as the outermost layer of the terrestrial planet and consists of young and old ones depending on their location from the mid-ocean ridges.

The Earth's older, denser, and thicker crust located on the seafloor is the  the furthest away from the center of mid-ocean ridges and is located around subduction zones and continental shelves while the young and less dense crust are closer which is therefore the reason why option A was chosen as the correct choice.

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Does following a schedule
Appeal to you, or
Cramp you?

Answers

Following a schedule does not cramp me, rather it appeals to me.

Why schedules appeal to me

A schedule is a plan that specifies the time and duration of activities, events, or tasks that need to be accomplished. It can be in the form of a calendar, planner, or list of tasks to be done at specific times.

Several reasons make having a schedule important include:

Managing time efficiently and effectively is vital for success. One way to do this is by prioritizing tasks and allocating the right amount of time to complete them. This helps in avoiding procrastination and ensures a timely completion. Create a schedule and stick to it to make the most of your time.

By preventing individuals from taking on too many tasks simultaneously, a schedule is integral to optimizing productivity. A schedule ensures that tasks are completed promptly and efficiently.

By creating order and control, a schedule can greatly reduce feelings of stress. The stress of last-minute rushes and deadlines can be avoided with the aid of a schedule.

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Question 5 of 10
Which phrase is the best definition of matter?
OA. Anything that has mass and occupies space
OB. A substance that has a fixed volume
O C. The amount of material in a given volume of space
O D. Anything that can move from place to place
SUBMIT

Answers

Answer:

Anything that has space and occupies space

The answer is A - Anything that has mass and occupies space.

PLS HELP 30 POINTS
Humans impact the environment in a variety of ways, good and bad. And sometimes, doing the same thing in a different way can have a very different impact. Sort the activities below according to whether they have a detrimental or beneficial impact on our environment.

Question 1 options:

Clear cutting an old forest


Sustainably harvesting trees


Constructing a salmon fish farm


Overfishing of certain species

PLS HELP 30 POINTSHumans impact the environment in a variety of ways, good and bad. And sometimes, doing

Answers

Answer:

Clear cutting an old forest: detrimental

Sustainably harvesting trees: beneficial

Constructing a salmon fish farm: beneficial

Overfishing of certain species: detrimental

Explanation:

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Air flowing from Alaska and the North Pacific push ocean waters, but instead of flowing directly south, they flow to the west. Why is that?

•Because of ocean currents

•Because of ocean tides

•Because of the rotation of the Earth

•Because of the marine life living in the ocean

Answers

I this because of ocean currents


Trackers uses 9000 meters in 30 minutes on a average how many meter trackers track each minute

Trackers uses 9000 meters in 30 minutes on a average how many meter trackers track each minute

Answers

Answer: it is 300

Explanation:

State one substance that leaves the blood as it flows through the tissues of the small intestine.

Answers

Answer:

Superior mesenteric artery.

The primary source of energy for the body is a form of sugar called glucose. It travels to cells all throughout the body after being absorbed into circulation from the small intestine.

Other chemicals that enter the circulation through the small intestine include the following:

Proteins' building components are amino acids.

The lipids' building components are fatty acids.

minerals and vitamins

Water

In an adult, the small intestine is a muscular tube that is roughly 20 feet long. It is situated in the belly, above the large intestine, and below the stomach. The bulk of digestion and nutritional absorption from meals occurs in the small intestine.

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The protein _________ has been implicated in regulating the shape of some bacterial cells; it is expressed in rod-shaped and helical bacteria. It resembles __________in structure. CreS, actin MreB, tubulin ParM, keratin CreS, tubulin MreB, actin

Answers

Answer:

The protein MreB, has been implicated in regulating the shape of some bacterial cells; it is expressed in rod-shaped and helical bacteria. It resembles actin in structure.

Câu 1: Trong các phát biểu sau phát biểu nào sai?

A. Trùng giàu di chuyển nhờ lông bơi.

B. Trùng biến hình luôn biến đổi hình dạng.

C. Trùng biến hình có lông bơi hỗ trợ di chuyển.

D. Trùng giày có dạng dẹp như đế giày.

Answers

câu D: Trùng dày có dạng dẹp như đế giày

Which of the following is NOT typically associated with the nitrogen cycle?
Onitrification
Onitrates
O ammonium
O aerobic respiration
O bacteria

Answers

Answer:

Explanation:

O ammonium

.
Which organ system is the xylem and phloem of the plant part of? A)Digestive system

B)Endocrine system

C)Respiratory system

D)Vascular system

Answers

Answer:

C is correct ans

Explanation:

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Your friend is standing on the other side of a canyon. If an Echo returns in 0.15 seconds and the temperature is 25°C. How far away is you from your friend?

Answers

The distance from you to your friend is approximately 22.5 meters.

The speed of sound at 25°C is about 343 meters per second. The time it takes for the sound to travel to the other side of the canyon and back is 0.15 seconds, so the total distance traveled by the sound is twice the distance between you and your friend. Using the equation distance = speed x time, we can calculate the distance between you and your friend as follows:

distance = speed of sound x time / 2distance = 343 m/s x 0.15 s / 2distance = 22.5 meters

Therefore, your friend is approximately 22.5 meters away from you across the canyon.

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Why is it that lipids, such as oil, do not readily mix with
water?
A Lipids are nonpolar molecules that are hydrophobic.
B Lipids are polar molecules that are hydrophilic.
C Lipids are nonpolar molecules that are hydrophilic.
D Lipids are polar molecules that are hydrophobic.

Answers

Answer:

Oils and fats not have any polar part and so for them to dissolve in water they would have to break some of water s hydrogen bonds. Water will not do this so the oil is forced to stay separate from the water.

Explanation:

A lake is situated near a factory that burns coal. How may the lake be affetced in years if there is no smoke control in the factory and no smoke control worldwide?

Answers

The lake will be affected in different ways over the years if there is no smoke control in the factory.

Following are the impacts on the lake if there is no smoke control in the factory:

1) Eutrophication: Coal smoke may contain nitrogen compounds that can contribute to eutrophication in the lake. When excessive nitrogen compounds that can contribute to eutrophication in the lake.

2) Sedimentation: The particulate matter emitted from the factory`s smoke can settle on the lake`s surface and gradually accumulate as sediments.

3) Bioaccumulation: Heavy metals present in coal smoke, such as mercury, can enter the lake`s food chain through aquatic organisms. These toxic substances can accumulate in the tissues of organisms over time leading to bioaccumulation.

Hence, in the absence of smoke control measures, the cumulative impact on the lake can be substantial and have long-term consequences for both the environment and human health.

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Propose an ecological solution that would protect the tiger species by maintaining the complex interactions within an ecosystem. Provide at least one strength and one limitation to this proposed solution.

Answers

Tigers have the ability to coexist with their own predators like brown bears, leopards, etc. In this condition, it is the risk that these predators may threaten the tiger species. Therefore, it is required to construct a special habitat for tigers where they get enough resources without any threat.

What is an Ecosystem?

An ecosystem may be defined as a place or area where members of different species live together and interact with one another for the purpose of food, shelter, and space.

The strength of the above solution is that the population of tiger species will be maintained in near future, but the limitation is that here we provide an artificial habitat for the tiger. Now, it depends on them to reside naturally or not.

Therefore, it is well described above.

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for a nuclear factor known as STAT3.
Based on the information in the passage, which protein domain of STAT3 is NOT predicted to play a role in its signaling?
O Nuclear localization domain
O Signal sequence domain
O DNA binding domain
O Protein binding domain

Answers

The protein domain of STAT3, which is not expected to play a role in STAT3 signaling, is the signal sequence domain. Correct answer: letter B.

The signal sequence domain of STAT3 is a protein domain that is not expected to play a role in STAT3 signaling. This domain is located at the amino-terminal end of the protein and is responsible for targeting STAT3 to the endoplasmic reticulum for further post-translational modification.

The signal sequence is a short hydrophobic region of about 20 amino acids that is recognized and bound by the SRP (signal recognition particle) receptor of the endoplasmic reticulum membrane. Once bound, the SRP receptor helps STAT3 to enter the endoplasmic reticulum, where it can be modified, folded, and transported to its eventual destination.

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oii tudo bem com vocês ❤️☺️​

Answers

Answer:

hello! which language are you typing???

What language is this???

What is the function of the circulatory system. I forgot!

What is the function of the circulatory system. I forgot!

Answers

Answer:

to pump blood throughout the body

Answer:

to pump blood throughout the body

Explanation:

The circulatory system contains of arteries and veins that help blood travel throughout the body

The diffrence of a number and 4 thirds 11 thirds. What is the number?

Answers

For the word problem, If the difference of a number and the fraction \(\frac{4}{3}\) is \(\frac{11}{3}\), then the number is 5.

How do we solve for the number?

The above mathematical problem is a word problem. Word problems are problems that are written in words, rather than in symbols.

To solve for the difference or mystery number, we say, Let x be the number.

The problem states that x -  \(\frac{4}{3}\) =  \(\frac{11}{3}\),

movin -  \(\frac{4}{3}\) to the other side of the equation,

we get x = \(\frac{11}{3}\) + \(\frac{4}{3}\) = \(\frac{15}{3}\)

We solve the fraction by dividing 15 by 3

\(\frac{15}{3}\) = 5

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3. What is the probability of a type BO mother and a type AO father having a type O child?

Answers

Answer:

B: 75% ////// O: 25%

Explanation:

So each child has a 75% of being B and a 25% chance of being O. Note that genetically, not all of the B blood type kids are the same. The BB child will only pass down the B version of the gene. The BO child can pass on their O gene version.

When an oxygen atom forms an ion, it gains two electrons.
What is the electrical charge of the oxygen ion?
2
1
O +1
O + 2

Answers

\(\huge\underline{\overline{\mid{\bold{\pink{ANSWER-}}\mid}}}\)

O+2

Match each part of the cell with its function.
cell wall
cell membrane
cytoplasm
ribosome
fills the cell and protects the structures
inside it
produces proteins
gives the cell its shape
separates the inside of a cell from the
environment

Match each part of the cell with its function.cell wallcell membranecytoplasmribosomefills the cell and

Answers

Cell membrane = separates the inside of a cell from the environment
Cell wall = gives the cell its shape
Cytoplasm = fills the cell and protects the structure inside it
Ribosome = produces proteins

What is an ethical vacuum?
A. When technology has created something for which we do not have an ethical framework yet.
B. A scientific idea that lacks ethics.
C. The situation of being without ethics.
D. A philosophy that ethics cannot exist in a vacuum, but need specific examples to be valid.

Answers

Answer:

D. A philosophy that ethics cannot exist in a vacuum, but needs specific examples to be valid.

What are the 3 domains and 6 kingdoms

Answers

Answer:

3 domains:
Bacteria, Archaea, Eukaryota.

6 kingdoms:
Protist, fungi, animalia, plantae, bacteria and archaea.

The three domains are Archaea, Bacteria, and Eukarya, and the six kingdoms are Archaea, Bacteria, Protista, Fungi, Plantae, and Animalia.

In biological classification, the three domains are the highest level of organization for categorizing living organisms. They represent broad groups based on fundamental differences in cell structure, biochemistry, and evolutionary history.

Archaea: This domain includes prokaryotic microorganisms known as archaea. They are distinct from bacteria and eukaryotes, and often live in extreme environments like hot springs, deep-sea vents, and salt flats. Archaea have unique molecular and genetic features that distinguish them from other organisms.

Bacteria: This domain consists of prokaryotic microorganisms called bacteria. They are found in a wide range of habitats and exhibit diverse metabolic capabilities. Bacteria play important roles in various ecological processes and have both beneficial and harmful impacts on humans.

Eukarya: This domain includes all eukaryotic organisms, which are characterized by having cells with a membrane-bound nucleus and other membrane-bound organelles. Eukarya encompasses a wide variety of organisms, including protists, fungi, plants, and animals.

The six kingdoms further classify organisms within the Eukarya domain:

Archaea: This kingdom consists of archaea, which are prokaryotic microorganisms that live in extreme environments.Bacteria: This kingdom includes bacteria, which are prokaryotic microorganisms found in various habitats.Protista: This kingdom encompasses diverse eukaryotic organisms that do not fit into other kingdoms. It includes unicellular organisms like amoebas, paramecia, and algae.Fungi: This kingdom comprises multicellular eukaryotic organisms that obtain nutrients through absorption. It includes organisms like mushrooms, yeasts, and molds.Plantae: This kingdom includes multicellular eukaryotic organisms that are capable of photosynthesis. It consists of plants, including mosses, ferns, gymnosperms, and flowering plants.Animalia: This kingdom encompasses multicellular eukaryotic organisms that are heterotrophic and capable of locomotion. It includes a vast array of animals ranging from sponges to insects, fish, birds, mammals, and humans.

These domains and kingdoms provide a hierarchical framework for classifying and organizing the incredible diversity of life on Earth based on shared characteristics and evolutionary relationships.

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Giant sequoias can grow to be nearly 100 meters (328 feet) tall. They rely on a complex transport system to allow
water to travel from the roots to the leaves at the top of the tree.
Which transport tissue allows water to travel upward from the roots to the leaves?
Enter your answer in the box.

Answers

The transported tissue that allows water to travel upward from the roots to the leaves is the xylem tissue in vascular plants such as in this case giant sequoia.

What is the function of the xylem tissue in trees and vascular plants?

The function of the xylem tissue in trees and vascular plants is to transport water and dissolved solutes from the roots to the upper organs, i.e., the shoot and leaves.

Therefore, with this data, we can see that function of the xylem tissue in trees and vascular plants is based on water transport.

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What makes human beings more dominant than other species?
use of technology
ability to reproduce
ability to move
life span

Answers

Answer:

use of technology and life span and also ability to reason

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